<template>
  <el-card class="box-card">
    <el-card class="box-form">
      <template #header>
        <div class="card-header">
          <h3>“微商城”后台管理系统</h3>
        </div>
      </template>
      <el-form
        ref="ruleFormRef"
        status-icon
        :model="form"
        :rules="rules"
        label-width="120px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input
            v-model="form.username"
            placeholder="请输入用户名"
          />
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input
            v-model="form.password"
            type="password"
            show-password
            placeholder="请输入密码"
          />
        </el-form-item>
        <el-form-item>
          <el-button
            class="button"
            @click="submitForm(ruleFormRef)"
            type="primary"
            size="large"
          >
            登录
          </el-button>
          <el-button class="button" @click="resetForm" type="info" size="large">
            重置
          </el-button>
        </el-form-item>
      </el-form>
    </el-card>
  </el-card>
</template>
<script setup>
import {ref,reactive} from 'vue'
import {login} from '../api'
import { useRouter } from 'vue-router';
import useToken from '../stores/token';
import notification from '../utils/notification';

const router = useRouter()
const {updateToken} = useToken()
const form = reactive({
  username:'',
  password:''
})

const ruleFormRef = ref()
const submitForm = formEl =>{
  formEl.validate(async valid=>{
    if(valid){
      const data = await login(form)
      if(data){
        //登陆成功
        updateToken(data.token)
        router.push({name:'index'})
      }
    }else{
      //表单填写错误
      notification({
        message:'表单填写错误',
        type:'error'
      })
    }
  })
}
const resetForm = ()=>{
  ruleFormRef.value.resetFields()
}
const rules = reactive({
  username:[
    {required:true,message:'请输入用户名',trigger:'blur'},
    {min:3,max:12,message:'用户名的长度为3-12个字符',trigger:'blur'}
  ],
  password:[
    {required:true,message:'请输入密码',trigger:'blur'},
    {min:6,max:24,message:'密码的长度为6-24个字符',trigger:'blur'}
  ]
})
</script>

<style lang="scss" scoped>
.box-card {
  height: 100%;
  background: rgba(38, 72, 176) url("/images/loginBg.jpg") center / cover
    no-repeat;
  .box-form {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 70%;
    max-width: 750px;
    transform: translate(-50%, -50%);
    .card-header {
      display: flex;
      justify-content: center;
      align-items: center;
    }
    .el-form {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      .el-form-item {
        width: 70%;
        display: flex;
        align-items: center;
        justify-content: center;
        --el-form-label-font-size: 16px;
        margin-top: 15px;
        margin-bottom: 15px;
        .button {
          width: 90px;
        }
        &.center {
          display: flex;
          justify-content: center;
        }
      }
    }
  }
}
</style>
